Rotary auxiliary feeders for excavating and loading means



Ot. .21, 1969 H. H. TURNER 3,473,243

- ROTARY AUXILIARY FEEDERS FOR EXCAVATING AND LOADING MEANS Filed Dec.29, 1965 /N VE/VTOA.

HZABERT H. rue/v52 3,473,243 ROTARY AUXILIARY FEEDERS FOR EXCAVAT- INGAND LOADING MEANS Herbert H. Turner, Boscobel, Wis. 53805 Filed Dec. 29,1965, Ser. No. 517,329 Int. Cl. E02f 3/24, 9/28; E21c 27/22 US. Cl.37-189 Claims ABSTRACT OF THE DISCLOSURE Auxiliary digging and throwingmembers for feeding aggregate into a rotary excavating and loadingmachine, comprising a series of horizontally rotating discs arranged invertical relation, one row on each side of the excavating and loadingmachine, the discs presenting digging teeth projecting forwardlypreferably in S relation to dig aggregate and throw it upwardly andtransversely into the main excavator.

This invention relates to excavating and loading machinery such as thatshown in my Patent No. 2,748,505, and had particular relation to anauxiliary feeder and auxiliary excavating and loading apparatus formachines of this character. While of considerable capacity, it may besupplemented by auxiliary loading and excavating means on either side ofthe main drum which serves the purposes of increasing the capacity ofthe machine and also of enlarging the cut of the loader to keep thesides of the main frame and loading machine free from aggregatematerial, and these are among the main objects of my invention.

Other and further features and objects of the invention will be moreapparent to those skilled in the art upon a consideration of theaccompanying drawing and following specifications, wherein is discloseda single exemplary embodiment of the invention.

In said drawing:

FIGURE 1 is a view in perspective of an excavating and loading machineto which auxiliary excavating and feeding means have been appliedaccording to one embodiment of my invention.

FIGURE 2 is a front elevational view of one of the cutting and feedingmeans shown in FIGURE 1.

FIGURE 3 is a view in section taken along the line 33 of FIGURE 2, and

FIGURE 4 is a view in side elevation of the auxiliary cutting means withthe side cover of the main support broken away to illustrate the drive.

Referring now to the drawing:

The auxiliary excavating and feeding structure employs a substantiallyrectangular box-like main supporting column 51 in which one or morehorizontally, forwardlyextending shafts 52 are mounted, using the frontand rear walls of the box 51 as supports for the bearings of the saidshafts. The posts are supported by means of shoes 53 attached to theside of the main frame for supporting the lower ends of the box-likemembers 51 and a heavy channel or the like at 54 for supporting theupper end of the box-like case 51. The upper supporting member isengaged to the sides of the main frame and this member 54 is providedwith a plate in the forward end thereof, indicated at 56, and arearwardly extending section 57 connected to its companion member on theauxiliary excavating apparatus by cross member 58.

The shafts such as 52, 61 and 62 are driven by means of sprockets andchains indicated generally at 63, 64 and 65 so as to rotate the shaftsall in the same direction-that is, counterclockwise on the post 51 atthe righthand side of the machine, so that material is thrown over nitedStates Patent 0 "ice inwardly into the path of the truck as will be moreparticularly hereinafter described.

Disc-like plates 66 are mounted on the shafts 52, 61 and 62 and thesedisc-like plates carry straps formed in S shape as indicated at 67 andare welded or otherwise secured to the faces of disc 66. These strapsform curved scoops for throwing material outwardly from the center anddischarging it generally transversely across the face of the machine.

Referring to FIGURE 2, the full lines at 67 indicate a scoop suited forthrowing material to the left, when rotating in a counterclockwisedirection. Such a scoop would be mounted on post 51 on the right-handside of the excavating machine as viewed in FIGURE 1. The excavatingmembers on the post 51 at the left side of the machine are provided witha scoop 68, indicated in dotted lines on FIGURE 2, which is adapted tothrow material to the right and into the drum when the disk rotatesclockwise. Thus, opposite sides of the excavating machine are providedwith scoops which are oppositely disposed with respect to the center ofthe machine on their corresponding plates 66.

The outer edges of the shaped scoops are connected, preferably by anangle iron such as illustrated at 69, with the inner edges of the angleiron welded to the edges of the scoops and with cutting bits 71 and 72bolted or otherwise secured to the outer faces of the angle iron asillustrated, with the bits mismatched so that their cutting paths willnot overlap, and of course the set of bits at one end are secured to oneface of the angle iron and the other bits at the other end are securedto the other face, so that as the disc or cutting element rotates, thebits are presented with their cutting ends at 73 and 74 forward for bestcutting effect. The cutting bits also are inclined to a greater degreetoward the center of the circle than they are at the outside.

I claim as my invention:

1. In an excavator having a main cutting drum mounted for rotation abouta horizontal axis transverse to the movement of said excavator as itadvances into an aggregate being excavated, said cutting drum serving tocut and to carry said aggregate away from the excavation, theimprovement comprising: auxiliary digging and throwing members forcutting additional material from the edges of the excavation and feedingsaid material into the path of said cutting drum, said auxiliary membersincluding a plurality of vertically aligned disk-like plates carried onrotatable horizontal shafts, post means located on at least one side ofthe main cutting drum and supporting said horizontal shafts, drivingmeans for rotating said shafts, a curved scoop secured to the surface ofeach said disk-like plate for throwing material into the path of themain cutting drum, a plurality of cutting bits for loosening theaggregate to be excavated and a support member secured to said curvedscoop for carrying said cutting bits.

2. The excavator of claim 1, wherein said support member carries saidhits at an acute angle with respect to the surface plane of saiddisk-like plates.

3. The excavator of claim 1, said excavator including first and secondpost means, one located on each side of said main cutting drum, eachpost carrying a plurality of said rotatable, horizontal shafts.

4. The excavator of claim 3, wherein the curved scoops secured to thedisk-like plates on said first post means are oppositely disposed to thecurved scoops secured to the disk-like plates on said second post meansin relation to the center of the excavator path, whereby said scoopsthrow material into the path of said cutting drum.

5. The excavator of claim 4, wherein said support mernber carries saidbits at an acute angle with respect 2,877,985 3/1959 Petersen 37142 XRto the surface plane of said disk-like plates. 3,190,379 "6/ 1965Trc'e'p'plet a1. 37142 XR References Cited FOREIGN PATEN TS V UNITEDSTATES PATENTS 5 80,936 8/1951 cnechoslovakla.

825,857 7/1906 Moran et a1 299-91 XR ROBERT PULFREY, p img Examiner1,393,935 10/1921 Bekkerus 3723 2,223,608 12/1940 George CLIFFORD D.CROWDER, Asslstant Exammer 2,748,505 6/ 1956 Turner 3796 l v 3,074,7031/ 1963 Adams et a1. 299-91 XR 10 1,182,067 5/1916 Whittell 37 .so 3.7142;175- 91;299 86,91

